Handling robot of magnetic head assembly, magnetic head test method and magnetic head tester

1. A handling robot for mounting a magnetic head assembly on a head clamp table of a magnetic head tester by sucking a mounting base with respect to the magnetic head assembly having at least first flexible printed circuit board which has a front end portion in which a magnetic head is provided and a rear end portion on which a terminal pad connected to the magnetic head is provided, by a suction head of the handling robot, comprising said suction head for holding the flexible printed circuit board such that the flexible printed circuit board becomes horizontal when the magnetic head assembly is mounted on said clamp table, and a pressing arm provided in the suction head for preventing upward warp of the rear portion of the first flexible printed circuit board which is held horizontal, wherein the pressing arm is in contact with an upper surface of the first flexible printed circuit board at the rear portion of the first flexible printed circuit board.

2. A handling robot claimed in claim 1 , further comprising a terminal pad pedestal on which the terminal pad is mounted and a contact probe unit having a probe, wherein said pressing arm contacts the first flexible printed circuit board horizontal to keep the first flexible printed circuit board horizontal or to push said rear side end portion down, said terminal pad is mounted on said terminal pad pedestal when the magnetic head assembly is mounted on said head clamp table and said probe contacts with a terminal of said terminal pad mounted on said terminal pad pedestal.

3. A handling robot claimed in claim 2 , wherein said pressing arm includes a contact pin contacting with the first flexible printed circuit board between at least a center position of a length of the first flexible printed circuit board from the mounting base to the terminal pad and the terminal pad of the magnetic head assembly on a level of a suction surface of the suction head.

4. A handling robot claimed in claim 3 , wherein the terminal pad of the first flexible printed circuit board is arranged in a horizontal plane containing a longitudinal center axis of the magnetic head assembly orthogonally to the longitudinal center axis with a predetermined offset.

5. A handling robot claimed in claim 4 , wherein the magnetic head assembly has a second flexible printed circuit board having a terminal pad which is arranged in the horizontal plane containing the longitudinal center axis of the magnetic head assembly orthogonally in opposite direction to the longitudinal center axis with a predetermined offset.

6. A handling robot claimed in claim 5 , wherein a plurality of said magnetic head assemblies are arranged in a tray and one of said magnetic head assemblies is sucked by said suction head and transported to said head clamp table, sequentially.

7. A magnetic head test method for testing a magnetic head of a magnetic head assembly by mounting the magnetic head assembly on a head clamp table of a magnetic head tester by sucking a mounting base with respect to the magnetic head assembly having at least first flexible printed circuit board which has a front end portion in which a magnetic head is provided and a rear end portion on which a terminal pad connected to the magnetic head is provided, by a suction head of a handling robot, the magnetic head tester having the handling robot, a pressing arm provided in the suction head and a clamp mechanism provided on a head clamp table of a magnetic head tester, comprising the steps of: sucking the magnetic head assembly by the suction head of the handling robot, transporting the magnetic head assembly to the head clamp table, mounting the magnetic head assembly on the head clamp table such that the flexible printed circuit board becomes horizontal and preventing an upward warp of the rearward portion of the flexible printed circuit board by pressing the rearward portion of the flexible printed circuit board by the pressing arm, releasing the suction for the magnetic head assembly on the head clamp table, and clamping the magnetic head assembly by the clamp mechanism.

8. A magnetic head test method claimed in claim 7 , wherein the handling robot further includes a terminal pad pedestal on which the terminal pad is mounted and a contact probe unit having a probe and the flexible printed circuit board is made horizontal or the rear end portion of the flexible printed circuit board is pushed downward by the contact of the pressing arm, the terminal pad is mounted on the terminal pad pedestal when the magnetic head assembly is mounted on the head clamp table and the probe contacts with a terminal of the terminal pad mounted on the terminal pad pedestal.

9. A magnetic head test method claimed in claim 8 , wherein the flexible printed circuit board is made horizontal or the rear end portion of the flexible printed circuit board is pushed downward by the contact of said pressing arm and, after the contact probe unit contacts with a terminal provided in the terminal pad, the suction head is retreated from the clamp table.

10. A magnetic head tester for testing a magnetic head of a magnetic head assembly by mounting the magnetic head assembly on a head clamp table by sucking a mounting base with respect to the magnetic head assembly having a flexible printed circuit board which has a front end portion in which a magnetic head is provided and a rear end portion on which a terminal pad connected to the magnetic head is provided, by a suction head of a handling robot, comprising said suction head for holding said flexible printed circuit board such that the flexible printed circuit board becomes horizontal when said magnetic head assembly is mounted on the head clamp table, a pressing arm provided on said suction head for preventing an upward warp of the rear end portion of said horizontal flexible printed circuit board and said pressing arm contacting with an upper surface of said flexible printed circuit board in the rearward end portion of said horizontal flexible printed circuit board, a clamp mechanism of said magnetic head assembly, provided on said head clamp table and clamping said magnetic head assembly which is mounted on the head clamp table and released from the suction of said suction head.

11. A magnetic head tester claimed in claim 10 , further comprising a terminal pad pedestal on which said terminal pad is mounted and a contact probe unit having a probe, wherein said pressing arm makes said flexible printed circuit board horizontal or presses said rearward end portion thereof down by the contact with said flexible printed circuit board, said terminal pad is mounted on said terminal pad pedestal when the magnetic head assembly is mounted on said head clamp table and said probe contacts with a terminal of said terminal pad mounted on said terminal pad pedestal.

12. A magnetic head tester claimed in claim 11 , wherein said pressing arm has a contact pin arranged in a position, said contact pin contacting with said flexible printed circuit board, said position being behind said mounting base by at least a half of a distance from said mounting base to said terminal pad of said flexible printed circuit board, and a level of said contact pin with respect to said flexible printed circuit board corresponds to a level of a suction surface of said suction head.

13. A magnetic head tester as claimed in claim 12 , further comprising a head carriage having a head arm, wherein said terminal pad pedestal, said contact probe unit and said head clamp table are provided in said head arm.

14. A magnetic head tester as claimed in claim 13 , further comprising a suction mechanism, wherein said suction mechanism is provided on the terminal pad pedestal.